0.981 is less then 1
2.3 is greater then 1
0.981 < 2.3 (it is less then)
Just multiply 2 and 15 and you get 30. 30 miles is the answer
For question 8, you'll have to calculate the price for three lamps and the sofa together. Take the total price of the items and multiply the percentage.
For question 9, the formula for simple interest is price(P) x rate(R) x time(T) / 100. Put in the information given:)